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/*
* Copyright (C) 2010 Bolloré telecom
*
* Author:
* Jeremy Lainé
*
* Source:
* http://code.google.com/p/qxmpp
*
* This file is a part of QXmpp library.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
*/
#ifndef QXMPPSTUN_H
#define QXMPPSTUN_H
#include <QObject>
#include "QXmppLogger.h"
#include "QXmppJingleIq.h"
class QUdpSocket;
class QTimer;
class QXmppStunMessage;
/// \brief The QXmppStunSocket class represents an UDP socket capable
/// of performing Interactive Connectivity Establishment (RFC 5245).
///
class QXmppStunSocket : public QObject
{
Q_OBJECT
public:
QXmppStunSocket(bool iceControlling, QObject *parent=0);
~QXmppStunSocket();
QList<QXmppJingleCandidate> localCandidates() const;
QString localUser() const;
void setLocalUser(const QString &user);
QString localPassword() const;
void setLocalPassword(const QString &password);
int component() const;
void setComponent(int component);
bool addRemoteCandidate(const QXmppJingleCandidate &candidate);
void setRemoteUser(const QString &user);
void setRemotePassword(const QString &password);
void close();
void connectToHost();
bool isConnected() const;
qint64 writeDatagram(const QByteArray &datagram);
private slots:
void checkCandidates();
void readyRead();
signals:
// This signal is emitted once ICE negotiation succeeds.
void connected();
// This signal is emitted when a data packet is received.
void datagramReceived(const QByteArray &datagram);
/// This signal is emitted to send logging messages.
void logMessage(QXmppLogger::MessageType type, const QString &msg);
private:
class Pair {
public:
Pair();
QString toString() const;
QIODevice::OpenMode checked;
quint32 priority;
QXmppJingleCandidate remote;
QXmppJingleCandidate reflexive;
QByteArray transaction;
};
Pair *addRemoteCandidate(const QHostAddress &host, quint16 port);
void debug(const QString &message, QXmppLogger::MessageType = QXmppLogger::DebugMessage);
qint64 writeStun(const QXmppStunMessage &message, QXmppStunSocket::Pair *pair);
int m_component;
QString m_localUser;
QString m_localPassword;
Pair *m_activePair;
bool m_iceControlling;
QList<Pair*> m_pairs;
QString m_remoteUser;
QString m_remotePassword;
QUdpSocket *m_socket;
QTimer *m_timer;
};
#endif
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